HT1349: How to find the serial number of your Apple hardware productLearn about How to find the serial number of your Apple hardware product
Currently Being ModeratedFeb 22, 2012 12:15 PM (in response to Baby Gutierrez)
With the small amount of information you have provided I would suggest you open Print & Scan and remove the current MP560 printer. Once removed, then select to add it again and see if this gets you printing again.
If this does not help then please reply with more information about how the MP560 is connected to your Mac and whether it was working previously.
Currently Being ModeratedMay 13, 2012 9:04 AM (in response to Baby Gutierrez)
Please see my detailed posting regarding this, about halfway down the page from this link
Believe you may be the same situation. It is a Canon problem.
Currently Being ModeratedJan 23, 2013 6:35 AM (in response to FromOZ)
I have a different solution in case OZ's doesn't work: https://discussions.apple.com/message/21003547#21003547